Mixture of self-invertible inverse latex and a powder for cosmetic or pharmaceutical use; use as texturizer

ABSTRACT

A texturizing composition and method utilized for foundations, makeup powders, mascaras, lipsticks, emulsions, lotions, gels, sprayable formulations, and solution impregnated on fabrics, paper, towelettes or complexion corrector papers comprising at least one self-invertible inverse latex, and powder.

FIELD OF THE INVENTION

The invention relates to novel compositions in powder form and to theiruse as a texturizer in cosmetic, dermopharmaceutical and pharmaceuticalapplications and in the treatment of paper or textiles.

BACKGROUND OF THE INVENTION

Texturizers are frequently used in producing formulations intended forcaring for or making up the skin or mucosae or else in application tosubstrates such as paper or textiles. Their principal function is toenhance the sensorial and rheological properties of the formulations inwhich they are incorporated or of the substrates to which they areapplied. Examples of texturizers used in cosmetology include polymethylmethacrylate powders (Micropearl™), polyamide powders (Nylon™), siliconepowders (DC9506™, Polytrap™), and modified starches (Dry Flo™). Some ofthese powders produce in the user a sensation of softness on spreadingand a lasting powdery feel; others inhibit the greasy sensation felt onspreading and bring about a long-lasting matting effect.

Some amino acid derivatives, such as N-lauroyllysine, are sometimesadded to makeup formulas in order to combine the effects of softness onapplication and staying power on the skin. This effect may also beobtained by treating the surface of the powders with various compounds,including amino acids.

In certain cases fibres are also added to the formulations, eithernatural fibres such as cellulose or cotton fibres or synthetic fibressuch as polyethylene, Teflon or polyester fibres, in order to modify therheological characteristics of the formulas or to enhance both theuniformity of their distribution on the surface to be coated and theirstaying power thereon.

Certain fillers, such as talc, mica, sericite or else composite fillers,are also used in order to modify the lubricating properties of theformulation and to facilitate flow or spreading on the substrate.

Other types of pigmentary fillers, such as titanium oxide, zinc oxide oriron oxides, may also be incorporated into these formulations in orderto modify their transparency or colour on application while influencingtheir final texture.

These powders are, generally speaking, well suited to the manufacture ofloose powder or compact powder formulations or of formulations with acontinuous fatty phase, such as water-in-oil emulsions,water-in-silicone-oil emulsions, sticks and other compact formulas.

In contrast, they are often difficult to employ in media having acontinuous aqueous phase, such as lotions, gels, cream gels oroil-in-water emulsions. In such cases it is necessary to carry outspecific and expensive preliminary studies, for each powder and eachtype of formulation, in order to obtain both effective dispersion of thepowder and satisfactory stability of the formulation.

The formulator is then often compelled to use either hydrophilicmicroporous microspheres of Micropearl™ type, in combination withstabilizers, or powders which have been surface-treated to enhancecompatibility with the other ingredients of the formulation. In thislatter case, however, the appropriate treatment is specific to theformulation selected and, moreover, does not relieve the formulator ofthe task of a stability study on the treated powder selected within theformulation. Finally, this last solution is not generally suitable forformulations of the type with a continuous aqueous phase, either in theabsence or in the presence of a small proportion of fatty phase.

Consequently, in the context of its research into improving the textureof formulations, the applicant has sought to develop new texturizers inpowder form which are multi-functional and are easy to employ, both insolid formulations of loose powder or compact powder type and informulations with a continuous fatty phase or in formulations with acontinuous aqueous phase, with or without a small proportion of fattyphase.

BRIEF SUMMARY OF THE INVENTION

The invention provides a composition consisting essentially of a mixturecontaining:

-   -   from 1% to 90% by weight of at least one self-invertible inverse        latex;    -   from 99% to 10% by weight of the mixture of at least one        cosmetically or pharmaceutically acceptable powder.

BRIEF DESCRIPTION OF THE DRAWINGS Brief Description of Drawings

FIG. 1 compares the microscopic appearance (×400) of compounds of theinvention and conventional texturizers in powder form.

FIG. 1 a is control powder (t₁), Micropearl™ M310 alone.

FIG. 1 b is control powder (t₂), Micropearl™ M310 and Simulgel™ EGaccording to the state of the art.

FIG. 1 c is composition (1), a composition according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

A self-invertible inverse latex denotes more particularly a compositioncomprising an oil phase, an aqueous phase, at least one water-in-oil(W/O) emulsifier, at least one oil-in-water (O/W) emulsifier, containingfrom 20% to 70% by weight and preferably from 25% to 50% by weight of abranched or crosslinked polyelectrolyte, characterized in that the saidpolyelectrolyte is alternatively a homopolymer based on a monomerpossessing either a strong acid function which is partly or totally insalt form or a weak acid function which is partly or totally in saltform, or a copolymer based on at least one monomer possessing a strongacid function copolymerized either with at least one monomer possessinga weak acid function or with at least one neutral monomer, or acopolymer based on at least one monomer possessing a weak acid functioncopolymerized with at least one neutral monomer or with a monomerpossessing a weak acid function.

The term “water-in-oil emulsifier” refers to surfactants having asufficiently low HLB to give water-in-oil emulsions, such as surfactantpolymers of the polyethylene glycol poly(hydroxystearic acid) blockcopolymer type which are sold under the name Hypermer™, such as sorbitanesters, for instance sorbitan monooleate sold by the applicant under thename Montane™ 80, sorbitan isostearate sold by the applicant under thename Montane™ 70, sorbitan oleate ethoxylated with 5 moles of ethyleneoxide (5 EO) sold by the applicant under the name Montane™ 81,diethoxylated (2 EO) oleocetyl alcohol sold by the applicant under thename Simulsol™ OC 72 or sorbitan sesquioleate sold by the applicantunder the name Montane™ 83.

The term “oil-in-water emulsifier” denotes surfactants having asufficiently high HLB to give oil-in-water emulsions, such asethoxylated sorbitan esters, for instance sorbitan oleate ethoxylatedwith 20 moles of ethylene oxide (20 EO), sold by the applicant under thename Montanox™ 80, castor oil ethoxylated with 40 moles of ethyleneoxide (40 EO), sold by the applicant under the name Simulsol™ OL 50,sorbitan laurate ethoxylated with 20 moles of ethylene oxide (20 EO),sold by the applicant under the name Montanox™ 20, sorbitan trioleateethoxylated with 25 moles, sold by the applicant under the nameMontanox™ 85, lauryl alcohol ethoxylated with 7 moles of ethylene oxide(7 EO), sold by the applicant under the name Simulsol™ P 7,decaethoxylated (10 EO) oleocetyl alcohol, sold by the applicant underthe name Simulsol™ OC 710 or polyethoxylated sorbitan hexaoleates soldunder the names G-1086™ and G-1096™.

A branched polymer is a non-linear polymer having pendant chainsresulting, when this polymer is dissolved in water, in an advanced stageof entanglement, leading to very high viscosities at low shear rate.

A crosslinked polymer is a non-linear polymer in the form of athree-dimensional network which is insoluble in water but which can beswollen in water, so leading to the preparation of a chemical gel.

The strong acid function of the monomer containing it is in particularthe sulphonic acid function or the phosphonic acid function, partly ortotally in the salt form. The said monomer may be, for example,styrenesulphonic acid partly or totally in salt form or, preferably,2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly ortotally in salt form, in particular in the form alternatively (i) of analkali metal salt, such as the sodium salt or potassium salt, forexample, (ii) of an ammonium salt, (iii) of the salt of an aminoalcohol, such as the monoethanolamine salt, for example, or (iv) of thesalt of an amino acid, such as the lysine salt, for example.

The weak acid function of the monomer containing it is, in particular,the carboxylic acid function, and the said monomer is preferablyselected from acrylic acid, methacrylic acid, itaconic acid, maleic acidand 3-methyl-3-[(1-oxo-2-propenyl)amino]butanoic acid, the said acidsbeing partly or totally in salt form, in particular in the formalternatively (i) of an alkali metal salt, such as the sodium salt orpotassium salt, for example, (ii) of an ammonium salt, (iii) of the saltof an amino alcohol, such as the monoethanolamine salt, for example, or(iv) of the salt of an amino acid, such as the lysine salt, for example.

The neutral monomer is selected in particular from acrylamide,methacrylamide, dimethylacrylamide, 2-hydroxyethyl acrylate,2,3-dihydroxypropyl acrylate, 2-hydroxyethyl methacrylate,2,3-dihydroxypropyl methacrylate, diacetoneacrylamide and an ethoxylatedderivative of each of these esters with a molecular weight of between400 and 1 000.

The invention more particularly provides a composition as defined above,characterized in that the anionic polyelectrolyte is crosslinked and/orbranched with a diethylenic or polyethylenic compound in the molarproportion, expressed relative to the monomers employed, of from 0.005%to 1%, and preferably from 0.01% to 0.5%, and more particularly from0.01% to 0.25%, preferably the proportion for which the crosslinkingagent and/or the branching agent is selected from ethylene glycoldimethacrylate, diallyloxyacetic acid or a salt thereof such as sodiumdiallyloxyacetate, ethylene glycol diacrylate, diallylurea,triallylamine, trimethylolpropane triacrylate andmethylenebis(acrylamide) or a mixture of these compounds.

The self-invertible inverse latex employed in the present inventioncontains generally from 2.5% to 15% by weight and preferably from 4% to9% by weight of emulsifiers, of which from 20% to 50%, in particularfrom 25% to 40%, of the total weight of the emulsifiers present are ofthe water-in-oil (W/O) type and from 80% to 50%, in particular from 75%to 60%, of the total weight of the emulsifiers are of the oil-in-water(O/W) type.

In the self-invertible inverse latex employed in the present invention,in general, the oil phase represents from 15% to 40% and preferably from20% to 25% of its total weight.

This oil phase is generally composed alternatively of a commercialmineral oil containing saturated hydrocarbons such as paraffins,isoparaffins and cycloparaffins, having at room temperature a density ofbetween 0.7 and 0.9 and a boiling point of more than 180° C., such as,for example, Isopar™ L, Isopar™ M, Exxsol™ D 100 S or Marcol™ 52, whichare sold by Exxon Chemical, isohexadecane or isododecane, or a vegetableoil, or glycerol esters, such as Softenol™3108, Softenol™3178,Softenol™3100, Softenol™3107 and Softenol™3118, or fatty acid esters, ora synthetic oil, or a mixture of two or more of these oils.

In one preferred embodiment of the present invention the oil phase iscomposed of Marcol™ 52, squalane, hydrogenated polyisobutene, octylpalmitate, isostearyl isostearate, isododecane or isohexadecane;isohexadecane, which is identified in Chemical Abstracts by the registrynumber (RN) 93685-80-4, is a mixture of C12, C16 and C20 isoparaffinscontaining at least 97% of C16 isoparaffins, among which the mainconstituent is 2,2,4,4,6,8,8-heptamethylnonane (RN=4390-04-9). It issold in France by Bayer. Marcol™ 52 is a commercial oil meeting thedefinition of Vaseline oils in the French Codex. It is a white mineraloil conforming to the regulations FDA 21 CFR 172.878 and CFR 178.3620(a) and it is recorded in the U.S. Pharmacopeia US XXIII (1995) and inthe European Pharmacopoeia (1993). Softenol™3819 is a mixture of fattyacid triglycerides containing 6 to 10 carbon atoms. Softenol™3108 is amixture of fatty acid triglycerides containing 8 to 10 carbon atoms.Softenol™3178 is a mixture of fatty acid triglycerides containing 8 to18 carbon atoms. Softenol™3100 is a mixture of fatty acid triglyceridescontaining 12 to 18 carbon atoms. Softenol™3107 is a mixture of fattyacid triglycerides containing 7 carbon atoms. Softenol™3114 is a mixtureof fatty acid triglycerides containing 14 carbon atoms. Softenol™3118 isa mixture of fatty acid triglycerides containing 18 carbon atoms.

The self-invertible inverse latices employed in the present inventioncontain generally between 20% and 50% of water. They may also includevarious additives such as complexing agents, transfer agents or chainterminators.

Self-invertible inverse latices of this kind are described in the Frenchpatent applications and French patents published under numbers 2721511,2773805, 2774688, 2774996, 2782086, 2785801, 2786493, 2787457, 2789395,2794034, 2794124, 2808446, 2808447 and 2810883.

The term “cosmetically or pharmaceutically acceptable powder” refers inparticular to powders of synthetic or natural origin which are organicor inorganic, hydrophilic or hydrophobic, with a mean diameter ofbetween approximately 0.01 μm and approximately 250 μm and preferablybetween 1 and 50 μm, micronized or not, of any form, in particular in afibre form, a lamellar form or a spherical form, which may haveundergone a surface treatment.

Examples include copolymers of acrylic and methacrylic acid or theiresters, starches, silicates, calcium, magnesium and barium silicates,calcium phosphate, boron nitride, lauroyllysine, silicone resin powders,calcium carbonate or magnesium carbonate, titanium oxide or zinc oxideor cerium oxide, iron oxides and other organic or inorganic pigments, ormixtures of these powders.

Fibres include, for example, natural fibres such as cotton, cellulose orchitosan fibres, synthetic fibres such as polyamide fibres, for instanceNylon™ fibres, Rayon™ fibres, Viscose™ fibres, cellulose acetate fibres,poly-p-phenyleneterephthalamide fibres such as Kevlar™ fibres,polyethylene or polypropylene fibres, glass fibres, carbon fibres,Teflon™ fibres, polyester fibres, polyvinyl chloride fibres, polyvinylalcohol fibres, polyacrylonitrile fibres, polyurethane fibres orpolyethylene phthalate fibres.

Powders in lamellar form include for example talcs, micas,mica-titaniums and sericite.

Powders in spherical form include, for example, polymethylmethacrylates, often referred to in the literature by the term PMMA, andformed of microporous microspheres with a specific surface area greaterthan or equal to 0.5 m2 per gram, such as those sold under the namesMicropearl™ M305, Micropearl™ M100, Micropearl™ 201 and Micropearl™M310; copolymers, including terpolymers, of methyl methacrylate with oneor more monomers selected from butyl acrylate, 1-methylpropyl acrylate,2-methylpropyl acrylate, 1,1-dimethylethyl acrylate, butyl methacrylate,1-methylpropyl methacrylate, 2-methylpropyl methacrylate and1,1-dimethylethyl methacrylate, such as those sold under the nameMicrosphere™;

silica microspheres such as those sold under the names Silica beads™ orPolytrap™;

hollow thermoplastic microspheres such as polyethylenes, polystyrenes,polyacrylonitriles, or polyamides, such as those sold under the nameOrgasol™ or else hollow polyester microspheres such as those sold underthe name Expancel™;

microcapsules made of organic or inorganic material, such as those soldunder the name Macrolite™.

The invention more particularly provides a composition as defined aboveconsisting essentially of a mixture containing:

-   -   from 5% to 80% by weight of at least one self-invertible inverse        latex and    -   from 20 to 95% of a cosmetically or pharmaceutically acceptable        powder.

In a first preferred embodiment of the present invention theself-invertible inverse latex present in the composition as definedabove is selected from the self-invertible inverse latices of thefollowing polyelectrolytes:

copolymer of acrylic acid partly in sodium salt form and acrylamide,crosslinked with methylenebis(acrylamide);

copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonicacid partly in sodium salt form and acrylamide, crosslinked withmethylenebis(acrylamide);

copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonicacid partly in sodium salt form and acrylic acid partly in sodium saltform, crosslinked with methylenebis(acrylamide);

copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonicacid partly in sodium salt form and 2-hydroxyethyl acrylate, crosslinkedwith methylenebis(acrylamide);

homopolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonicacid partly in sodium salt form, crosslinked withmethylenebis(acrylamide);

homopolymer of acrylic acid partly in ammonium salt or monoethanolaminesalt form, crosslinked with sodium diallyloxyacetate; or

homopolymer of acrylic acid partly in ammonium or monoethanolamine saltform, crosslinked with triallylamine.

The self-invertible inverse latices defined above include thecompositions sold under the brand names Sepigel™ 305 (INCI name:Polyacrylamide and C13-C14 Isoparaffin and Laureth-7), Sepigel™ 501(INCI name: Acrylamides Copolymer and Mineral oil and Paraffin liquidumand C13-C14 Isoparaffin and Polysorbate 85), Sepigel™ 502 (INCI name:C13-C14 Isoparaffin and Isostearyl isostearate and Sodium polyacrylateand Polyacrylamide and Polysorbate 60), Simulgel™ EG (INCI name: Sodiumacrylate and Acryloyldimethyl Taurate Copolymer and Isohexadecane andPolysorbate 80), Simulgel™ NS (INCI name: Hydroxyethyl Acrylate andSosium Acryloyldimethyl Taurate Copolymer and Squalane and Polysorbate60), Simulgel™ A (INCI name: Ammonium Polyacrylate and Isohexadecane andPolysorbate 89), Simulgel™ 600 (INCI name: Acrylamide and sodiumAcryloyldimethyl Taurate Copolymer and Polysorbate 80), Simulgel™ 800(INCI name: sodium Polyacryloyldimethyl Taurate and Isohexadecane andSorbitan oleate), Simulgel™ HT (INCI name: Polyacrylamide and paraffinoil and Polysorbate 80), Simulgel EPG™ (INCI name: Sodium Acrylate andAcryloyldimethyl Taurate copolymer and Polyisobutene and Caprylyl caprylGlucoside).

In a second particular embodiment of the present invention it provides acomposition as defined above in which the powder is selected frompowders in spherical form, such as polymethyl methacrylates, forexample, often referred to in the literature as PMMA, formed ofmicroporous microspheres with a specific surface area greater than orequal to 0.5 m2 per gram, such as those sold under the names Micropearl™M305, Micropearl™ M100, Micropearl M310™; Micropearl MHB™; andMicropearl 201™; copolymers, including terpolymers, of methylmethacrylate with one or more monomers selected from butyl acrylate,1-methylpropyl acrylate, 2-methylpropyl acrylate, 1,1-dimethylethylacrylate, butyl methacrylate, 1-methylpropyl methacrylate,2-methylpropyl methacrylate and 1,1-dimethylethyl methacrylate, such asthose sold under the name Microsphere™ or Sepipress™ M.

In a third particular embodiment of the present invention thecomposition contains at least 50% by weight of powder as defined above.

In a fourth particular embodiment of the present invention thecomposition as defined above is in the form of a homogeneous powder.

The invention further provides a process for preparing the compositionas defined above by simple mixing of the self-invertible inverse latexwith the powder.

The compositions provided by the present invention are used asformulation texturizers in cosmetic or pharmaceutical formulations, bothliquid and solid and can be combined with a lot of cosmetic orpharmaceutical excipients or active ingredients. Their physical andsensorial properties, relating either to their very gentle feel, improverelative to the powder used on its own, or their excellent adhesion tothe skin, greater than that of the powder to be used alone, and theircapacity for homogeneous suspension in the end formulations, make themparticularly appropriate for use in solid formulations such asfoundations, makeup powders, mascaras or lipsticks. Where they areemployed in liquid formulations those formulations may in particular beemulsions, lotions or gels, and more particularly sprayable formulationsor else solutions impregnated on fabrics or paper and more particularlyon towelettes or on complexion corrector papers.

The examples which follow illustrate the invention without, however,limiting it.

A) Demonstration of the differences in behaviour between the compoundsof the invention and conventional texturizers in powder form:

(1)—Suspension Properties—Stability of the Aqueous Dispersion

A composition (1) according to the invention was prepared by mixing, bystirring alone, Micropearl™ M310 and Simulgel™ EG in a 60/40 weightratio and then its properties were compared with Micropearl™ M310 alone(control powder^((t1))) and with an equivalent formulation prepared bysuccessive incorporation of Micropearl™ M310 and Simulgel™ EG (control(t₂)=state of the art).

This was done by preparing aqueous dispersions of the powder accordingto the invention and of the control powder^((t1)) at 2% by weight inwater by mechanical stirring with a deflocculating turbomixer.

The control preparation (t₂), containing the same proportion by weightof Micropearl™ M310 and Simulgel™ EG as composition (1), theseingredients having been added successively, is likewise prepared withthe same mechanical stirring by means of a deflocculating turbomixer.

The observations and analyses of dispersions are noted in the followingtable:

control(t₁) control (t₂) composition (1) Visual white and opaque whiteand opaque white and appearance heterogeneous homogeneous homogeneousMicroscopic Particle Particle Effective of appearance agglomerationagglomeration particle dispersion (×400) (see FIG. 1a) (see FIG. 1b)(see FIG. 1c) Brookfield <50 mPa · s 450 mPa · s viscosity LVT (spindle:2; speed: 6) Stability at 25° C. precipitates stable for 1 year after 24h Stability at 40° C. precipitates stable for more after 24 h than 6months Stability at 50° C. precipitates stable for more after 24 h thana month Feel impossible to easy spreading; easy spreading; evaluatefeel - fresh and very fresh and very product gentle feel; gentle feel;separates into residual powder residual powder phases effect effect

(2)—A composition according to the invention was prepared by simplymixing Micropearl™ M310 and Simulgel™ EG in an 80/20 weight ratio, andthen its properties were compared with a dispersion of Micropearl™ M310alone (control t₁) and with the equivalent preparation in weight %,consisting of successive addition of Micropearl™ M310 and Simulgel™ EG(control preparation t₃=state of the art). This was done by preparingaqueous dispersions of the powder according to the invention(composition 2) and of the control powder (powder t₁) at differentconcentrations in water by mechanical stirring with a deflocculatingturbomixer, and the equivalent preparations in weight % containingMicropearl™ M310 and Simulgel™ EG added successively (by an identicalstirring method).

The results of the observation and analysis of the dispersions arerecorded in the following table:

Concentration in % w/w 2% 3% 4% Appearance (t₁) opaque white opaquewhite opaque white liquid liquid liquid (t₃) opaque white opaque whitewhite milk liquid liquid (2) opaque white opaque white white milk fluidfluid Microscopic (t₁) particle particle particle appearance agglomerateagglomerate agglomerate (×400) (t₃) particle particle particleagglomerate agglomerate agglomerate (2) effective effective effectiveparticle particle particle dispersion dispersion dispersion Viscosity inmPa · s (t₁) <50 <50 <50 (Brookfield LVT (t₃) 80 400 2000 spindle 2speed 6) (2) 150 600 1 250 Stability at 25° C. (t₁) 24 h 24 h 24 h (t₃)24 h 1 week 3 months (2) 1 year 1 year 1 year Stability at 40° C. (t₁)24 h 24 h 24 h (t₃) 24 h 1 week 2 months (2) 6 months 6 months 6 monthsStability at 50° C. (t₁) 24 h 24 h 24 h (t₃) 24 h 24 h 1 month (2) >1month >1 month >1 month Feel (t₁) unstable unstable Unstable (t₃) verysoft feel, residual powder fresh effect; (2) effect easy spreading; verysoft feel; remanent powdery feel Concentration in % w/w 5% 10% 20%Appearance (t₁) opaque white opaque white opaque white liquid liquidliquid (t₃) white milk granular white granular white gel gel (2) whitemilk white gel white gel Microscopic (t₁) particle particle particleappearance agglomerate agglomerate agglomerate (×400) (t₃) particleparticle particle agglomerate agglomerate agglomerate (2) effectiveeffective effective particle particle particle dispersion dispersiondispersion Viscosity in mPa · s (t₁) <50 <50 <50 (Brookfield LVT (t₃) 10600 62 000 >100 000 spindle 2 speed 6) (2) 19 000 69 000 >100 000Stability at 25° C. (t₁) 24 h 24 h 24 h (t₃) 1 year 1 year 1 year (2) 1year 1 year 1 year Stability at 40° C. (t₁) 24 h 24 h 24 h (t₃) 1 year 1year 1 year (2) 6 months 6 months 6 months Stability at 50° C. (t₁) 24 h24 h 24 h (t₃) 1 year 1 year 1 year (2) >1 month >1 month >1 month Feel(t₁) unstable unstable Unstable (t₃) fresh effect; easy spreading; verysoft feel; (2) remanent powdery feel

The compositions according to the invention allow very simpleformulation, with a single ingredient, of formulas having a notablefeel, excellent stability on storage and a viscosity which can bemodified ideally. The compositions according to the invention have theadvantage of providing flawless dispersion of the powder, in contrast toformulations resulting from the successive introduction of Micropearl™and Simulgel™, even at high levels of powder. The stability of theformulations is likewise significantly enhanced for the lower levels ofpowder.

These dispersions may be used advantageously for all types of makeup orcare formulas in continuous aqueous phase alone, whether the initialpowders are hydrophilic, such as Micropearl™ M305, or hydrophobic, suchas Micropearl™ M310.

(3)—Stabilizing Effect within a Water-in-Silicone Emulsion

A series of emulsions in silicone oils were prepared on the basis of thefollowing formula:

Phase A DC5225C ™  20% by weight DC345 ™  10% by weight Sepicide ™ HB0.3% by weight Powder (3) (Micropearl ™ M310 +  x % by weight orSimulgel ™ EG, weight ratio 8/2) Control powder (t)  x % by weight(Micropearl ™ M310) Phase B Water qs 100% Sepicide ™ Cl 0.2% by weightGlycerin   5% by weight Sodium chloride   2% by weight

Method Of Production

The fatty phase A (containing the fillers) and the aqueous phase B areweighed out separately and mixed with a spatula.

The aqueous phase is then introduced into the fatty phase, with ananchor stirrer, in a number of portions; stirring is maintained forapproximately 10 minutes and then the emulsion is passed into a die-typehomogenizer (ALM™, die A180). The observations and analyses of theemulsions are recorded in the following table:

Powder Powder (t) Powder (3) x (% by weight) 2% 5% 2% 5% Viscosity 20000 mPa · s 8 500 mPa · s 23 300 mPa · s 9 260 mPa · s (Brookfield LVT)spindle 4 speed 6 Stability at Oily Oily Stable after 3 Stable after 325° C. exudation at exudation at months months 3 months 3 monthsStability at Oily Oily Stable after 3 Stable after 3 40° C. exudation atexudation at months months 1 month 3 months Stability at Oily OilyStable after 1 Stable after 3 50° C. exudation at exudation at monthmonths 1 month 3 months Feel Easy Easy Easy Easy spreading spreadingspreading spreading Soft feel Very soft feel Soft feel Very soft feelLight powder Remanent Slight powder Remanent effect powder effect effectpowder effect

While preserving the sensorial properties of the initially selectedpowder, the compositions according to the invention allow significantimprovement, without modification to the production process, of thestability of the emulsions produced, even for a low percentage ofpowder.

(4)—Enhancement of the Sensorial Properties of Compositions According tothe Invention Relative to those of Conventional Powder Texturizers

A number of compositions according to the invention were prepared fromdifferent powder texturizers, using the process described in paragraph(1) above.

The sensorial qualities of the powders, as raw materials, are evaluatedby a panel of 15 experts, who record each evaluation criterion:

Quality of Feel Between Thumb and Index Finger (Criterion 1)

Scale: 0 to 5 (harsh feel: 0; very soft feel: 5);

Covering Power (criterion 2)

Rating: from −1 to 1 (covering power identical to that of the controlpowder: 0; covering power greater than that of the control powder: 1;covering power inferior to that of the starting powder: −1);

Adhesion to the Skin (Criterion 3)

Rating: from 0 to 5 (no adhesion: 0; high adhesion: 5)

The properties of the following pairs of powders were compared:

Control powder (t_(a)): Micropearl™ M100

Inventive composition (4_(a)): Micropearl™ M100+Simulgel™ NS (weightratio 80/20)

Control powder (t_(b)): Aerosil™ 200

Inventive composition (4_(b)): Aerosil™ 200+Simulgel™ NS: (weight ratio80/20)

Control powder (t_(c)): Mica 1000™

Inventive composition (4_(c)): Mica 1000™+Simulgel™ NS (weight ratio80/20)

Control powder (t_(d)): Dry Flo™

Inventive composition (4_(d)): Dry Flo™+Simulgel™ NS (weight ratio80/20)

Control powder (t_(e)): titanium oxide USP

Inventive composition (4_(c)): titanium oxide USP+Simulgel™ NS (weightratio 80/20)

Control powder (t_(f)): micronized zinc oxide: ZnO Neutral™

Inventive composition (4_(f)): neutral zinc oxide+Simulgel™ NS (weightratio 80/20)

The results, recorded in the table below, are the arithmetic means ofthe scores for each of the three criteria.

Compositions (t_(a)) (4_(a)) (t_(b)) (4_(b)) (t_(c)) (4_(c)) (t_(d))(4_(d)) (t_(e)) (4_(e)) (t_(f)) (4_(f)) Criterion 3.5 4.7 1.2 2.5 3.04.1 3.2 4.3 0.5 1.5 0.7 1.4 1 Criterion 0 0 0 0 0 1 0 0 0 0 0 0 2Criterion 2.5 4.4 1.9 2.8 3.3 4.1 2.2 3.6 3.7 4.9 4.0 4.7 3

Generally speaking, irrespective of the nature of the powder selectedand its intrinsic properties, its initial, soft or harsh feel, itsstrong or weak natural adhesion to the skin, the compositions accordingto the invention score better for feel and skin adhesion than thecontrol powders.

In the majority of cases the covering power of the compositionsaccording to the invention is the same as that of the correspondingcontrol powder.

The transparent powders such as polymethyl methacrylates (Micropearl),silicas or starch derivatives give transparent compositions, while thecompositions produced from high-cover powders such as titanium oxide orzinc oxide have the same covering power of the original powder.

(5)—Evaluation of Sensorial Properties in Formulation

Pressed powders were prepared from the following formula:

Pressed powder formula Formula Luzenac ™ 00C talc qs 100% (compositionaccording to the invention) 05.00% by weight Mica 1000 ™ 50.00% byweight Colorant “FDC Yellow No. 6 Al lake” 00.30% by weight Colorant“Ariabel Sienna” 00.20% by weight Lanol ™ 1688 05.00% by weightDimethicone 05.00% by weight

The pulverulent compounds are mixed and then ground with a blade mixer.The hydrophobic binders are subsequently added in succession, withgrinding of the mixture between each addition. The final mixture isground again for several seconds. The powder is then compacted in ametal dish, using a Kemwall™ manual compactor, under a pressure of80×10⁵ Pa.

The sensorial qualities of the formulations are evaluated by a panel of15 individuals, who record the following criteria on a scale from 0 to5:

Ease of Removal with the Finger (Criterion 1)Ratings from 0 to 5 (no removal: 0; very easy removal: 5)

Ease of Spreading on the Skin (Criterion 2)

Ratings from 0 to 5 (spreading difficult, with sticking: 0; very easyspreading: 5)

Release of the Colorant, Homogeneity of the Film, Distribution of theColour (Criterion 3)

Ratings from 0 to 5 (heterogeneous film, poor coverage of the skin,poorly dstributed colorant: 0; perfectly homogeneous film, uniformcolour: 5)

Feel on the Skin (Criterion 4)

Ratings from 0 to 5 (harsh feel: 0; very soft feel: 5)

The properties of the following formulations were compared:

Formulation (t): Micropearl™ M310

Inventive formulation (5): Micropearl™ M100+Simulgel™ EG (weight ratio60/40).

The results, recorded in the following table, are the arithmetic meansof the scores for each of the four criteria.

Formulations Formulation (t) Formulation (5) Smooth and Smooth andVisual appearance of homogeneous homogeneous the compact appearanceappearance Criterion 1 3.0 4.2 Criterion 2 3.5 3.8 Criterion 3 4.0 4.5Criterion 4 3.2 4.7

The compounds according to the invention are also notable texturizers inloose, pressed or cast powder formulas.

(6)—Stabilizing Effect within a Water-in-Silicone Emulsion

The properties of the series of emulsions prepared in paragraph (3)above were compared with those of the series of emulsions in siliconeoils on the basis of the following formula:

Phase A: DC5225C ™ 20% by weight DC345 ™ 10% by weight Sepicide ™ HB0.3% by weight Micropearl ™ M310 (0.8×)% by weight Phase B: Simulgel ™EG (0.2×)% by weight Phase C: Water qs 100% Sepicide ™ CI 0.2% by weightGlycerin 5% by weight Sodium chloride 2% by weight

Production Method

The fatty phase A (containing the fillers) and the aqueous phase B areweighed out separately and mixed using a spatula.

The aqueous phase C is introduced into the fatty phase with anchorstirring in a number of fractions; stirring is maintained for severalminutes, Simulgel™ EG is introduced into the mixture, stirring iscontinued for approximately 10 minutes and then the emulsion is passedinto a dye-type homogenizer (Alm™, dye A180). The observations andanalyses of the emulsions are recorded in the following table:

Prior art emulsions Inventive emulsions x 2 5 2 5 Viscosity 21 000 mPa ·s 8 800 mPa · s 23 300 mPa · s 9 260 mPa · s (Brookfield LVT) spindle 4speed 6 Stability at Oily Stable after 3 Stable after 3 Stable after 325° C. exudation at 3 months months months months Stability at Oily OilyStable after 3 Stable after 3 40° C. exudation at 3 exudation at 3months months months months Stability at Oily Stable after 3 Stableafter 1 Stable after 3 50° C. exudation at 1 months month months monthFeel Easy spreading; soft feel; Easy Easy slight powder effect spreadingspreading soft feel very soft feel slight powder remanent effect powdereffect

The use of the compositions according to the invention allowsimprovement in the temperature stability of silicone oil emulsionswithout detriment to their sensorial properties.

B) Examples of Cosmetic Formulations

The compounds according to the invention are multi-functionaltexturizers which perform both in aqueous or oily liquid media and inmoulded or powder solid formulations.

EXAMPLE 1 Purifying Lotion for Greasy Skin

Formula Phase A Water qs 100% Copper gluconate 0.05% Zinc gluconate0.15% Phase B Micropearl ™ M310 + Simulgel ™ EG (75/25 3.50% by weight)Phase C Sepicide ™ HB 0.30% Sepicide ™ LD 0.80% Perfume 0.10%

Method

Phase A is prepared by dispersing the pulverulent compound in water withstirring and then phases B and C are added to the gel while continuingstirring.

EXAMPLE 2 Powder Fluid for Impregnation on Towelettes

Formula Phase A Water qs 100% Glycerin 3.00% Micropearl ™ M310 +Simulgel ™ EG (60/40 2.4% by weight) (inventive composition) Phase BSepicide ™ HB 0.30% Sepicide ™ LD 0.80% Perfume 0.10%

Method

Phase A is prepared by dispersing the pulverulent compound in water withstirring and then phases B and C are added to the gel while continuingstirring.

EXAMPLE 3 Sprayable Softness Fluid

Formula Phase A Water qs 100% Micropearl ™ M201 + Simulgel ™ EG (80/205.00% by weight) (inventive composition) Phase B DC345 ™ 2.00% Phase CSepicide ™ HB 0.30% Sepicide ™ Cl 0.20% Perfume 0.15% Sensiva ™ SC500.50%

Method

Phase A is prepared by dispersing the inventive composition in waterwith stirring and then phases B and C are added to the gel whilemaintaining stirring.

EXAMPLE 4 Freshening Aftersun Gel

Formula Phase A 90° alcohol 20.00% Menthol 00.05% Phase B Aqua/water qs100%   Micropearl ™ M201 + Simulgel ™ EG (80/20 10.00% by weight)(inventive composition) Phase C Sepicalm ™ VG 03.00% Perfume 00.10%Colorant qs

Method

Phase A is prepared by dissolving menthol in ethanol.

Phase B is prepared by dispersing the inventive composition in waterwith stirring and then, when the gel is homogeneous, phase C and thenphase A are added to phase B.

EXAMPLE 5 Strengthening Body Treatment

Formula Phase A Water qs 100% Micropearl ™ 305 + Simulgel ™ EG (80/20 by8.50% weight) (inventive composition) Phase B Lanol ™ 99 5.00%Sepicalm ™ VG 1.00% Sepilift ™ DPHP 1.00% Phase C Sepicide ™ HB 0.30%Sepicide ™ Cl 0.20% Perfume 0.10%

Method

The inventive composition is dispersed in water with stirring.

Phase B is prepared by heating the ester to 70° C. and then addingSepicalm™ VG and Sepilift™ DPHP.

This phase B is added with stirring to phase A and then phase C islikewise added to the mixture thus formed.

EXAMPLE 6 Invigorating Treatment

Formula Phase A Water qs 100% Glycerin 02.50% Micropearl ™ 310 +Simulgel ™ EG (80/20 by 15.00% weight) (inventive composition)Sepitonic ™ M3 01.00% Phase B Lanol ™ 99 05.00% DC345 ™ 02.50% Phase CPerfume 00.10% Sepicide ™ HB 00.30% Sepicide ™ Cl 00.20%

Method

Disperse the pulverulent compound with stirring in the aqueous phase andthen introduce the fatty phase B into the aqueous phase A whilecontinuing stirring. Add phase C to the final gel.

EXAMPLE 7 Lipstick

Formula Phase A Decyl oleate 25.00% Titanium dioxide 6.44% Yellow ironoxide 3.04% Black iron oxide 0.36% Colorant “DC Red 7” 0.78% Colorant“FDC Yellow 6” 0.70% Colorant “FDC Blue 1” 0.17% Phase B Lanol ™ 99 qs100% Ozokerite 11.75% Cetyl ricinoleate 10.00% Octyldodecanol 8.12%Beeswax 4.20% Triisostearyl trilinoleate 5.00% Cetyl palmitate 4.50%Carnauba wax (Copernicia cerifera) 2.28% Sepilift ™ DPHP 1.00%Micropearl ™ MHB + Simulgel ™ NS (65/35 by 3.00% weight) Phase C Perfume1.25% Tocopheryl acetate 00.20%

Method

Grind phase A in a bead mill.

Melt phase B at 85-90° C. and then add, with stirring, phase A, havingground it beforehand. Continue addition until dispersion is complete.

Introduce phase C with stirring. Cast the hot paste in moulds.

EXAMPLE 8 Face Powder

Formula Phase A Givobio ™ GCu 0.50% Lipacide ™ C8G 0.50% Lipacide UG0.50% Micropearl MHB ™ + Sepigel ™ 305 5.00% (60% + 40%) (inventivecomposition) Mica 50.00% Talc 33.00% Colorant “FDC Yellow 6 lake” 0.30%Colorant “Ariabel Sienna” 0.20% Phase B Lanol ™ 99 5.00% Phase CDimethicone 5.00%

Method

Weigh out all the powders (phase A) and grind them dry in a cutter mill.

Add phase B and repeat the same grinding time as for phase A.

Add phase C and repeat the same grinding operation as for phase B.

The powder thus prepared is subsequently pressed into jars using aKenwall™ manual compactor under a pressure of 80×10⁵ Pa.

EXAMPLE 9 Foundation

Formula Phase A Water 9.50% Butylene glycol 2.00% PEG-400 2.00%Pecosil ™ PS100 0.50% Sodium hydroxide qs pH = 9 Titanium dioxide 3.50%Talc 1.00% Yellow iron oxide 0.41% Red iron oxide 0.15% Black iron oxide0.025%  Phase B Montanov ™ L 2.00% Lanol ™ 99 4.00% Caprylic/caprictriglyceride 4.00% Phase C DC345 ™ 2.00% Xanthan gum 0.30% Aluminiummagnesium silicate 1.00% Phase D Water qs 100%   Tetrasodium EDTA 0.05%Micropearl M305 ™ + Simulgel ™ NS 2.00% (80%/20%) (inventivecomposition) Phase E Sepicide ™ HB 0.50% Sepicide ™ Cl 0.30% Perfume0.20%

Method

The liquid compounds of phase A are mixed and then the pH is adjustedbefore the pigments are added; this pigmentary phase is ground using abead mill.

Phase B is subsequently melted at 75° C.

The water is also heated to 75° C. before the addition of phase D andthen of phase A.

Thereafter phase C is added to phase B, and this mixture is introducedinto the hot aqueous phase before the emulsifying device is started.

The emulsion is then gradually cooled and the constituents of phase Eare added at 30° C.

EXAMPLE 10 Coloured Cream Gel

Formula Phase A Water 10.00%  Butylene glycol 4.00% PEG-400 4.00%Pecosil ™ PS100 1.50% Sodium hydroxide qs pH = 7 Titanium dioxide 2.00%Yellow iron oxide 0.80% Red iron oxide 0.30% Black iron oxide 0.05%Phase B Lanol ™ 99 4.00% Caprylic/capric triglyceride 4.00% DC345 ™4.00% Sepicide ™ HB 0.30% Perfume 0.20% Phase C Water qs 100%  Tetrasodium EDTA 0.05% Sepicontrol ™ A5 4.00% Sepicide ™ Cl(imidazolidinylurea − SEPPIC) 0.20% Phase D Micropearl M100 ™ +Sepigel ™ 305 17.5% (80%/20%) (inventive composition)

Method

The liquid compounds of phase A are mixed before the pigments are addedand then this pigmentary phase A is ground using a bead mill.

Phase D is introduced into phase C with turbulent stirring. When the gelhas formed and is homogeneous, the fatty phase B is added and then,finally, the pigment paste A.

EXAMPLE 11 Water-Silicone Sun Emulsion

Formula Phase A DC5225C ™ 20.00% DC345 ™ 10.00% Sepicalm ™ VG 3.00%Titanium dioxide 5.00% Zinc oxide Z-Cote ™ + Simulgel NS ™ 5.00%(80%/20%) (inventive composition) Sepicide HB ™ 0.30% Perfume 0.05%Phase B Water qs 100% Sepicide ™ Cl 0.20% Glycerin 5.00% Sodium chloride2.00%

Method

Phase A is prepared by mixing the silicones and Sepicalm™ VG and thendispersing the inorganic fillers with gentle stirring until theirwetting is complete, then by adding the preservative and the perfume.

The aqueous phase B is prepared separately and then introduced slowlyinto phase A with moderate stirring. The step of homogenizationcommences after all of the ingredients have been introduced.

In a continuous aqueous medium the compounds of the invention areparticularly effective in performance terms, since in addition to theirsensorial qualities they exhibit suspension properties and an intrinsicviscosity-increasing effect which can be modified as a function of theamount in which they are used.

Simple aqueous dispersion of the compounds of the invention, withoutaddition of any other ingredient, results in a stable powder suspensionwhose viscosity can be modified in accordance with the amount of powderintroduced.

This suspension is also able to stabilize, in accordance with the amountof powder, oils of any kind and solvents which are commonly used incosmetology, such as ethanol and glycols such as propylene glycol,butylene glycol or hexylene glycol.

In a continuous oily liquid medium, a significant stabilizing effect isalso provided by the compounds of the invention, in accordance with thenature of the powder selected.

The compounds of the invention are effective texturizers in all types offormulation, providing:

a very soft feel, improved relative to that of powder texturizers usedalone;

excellent adhesion to the skin, greater than that of powder texturizersused alone.

The characteristics of the commercial products used in the examplesabove are as follows:

-   Micropearl™ M305: silky, water-dispersible powder based on    crosslinked polymethyl methacrylate-   Micropearl™ M310: silky, hydrophobic powder based on crosslinked    polymethyl methacrylate-   Micropearl™ M100: silky, water-dispersible powder based on    polymethyl methacrylate-   Micropearl™ M201: silky, water-dispersible powder based on    crosslinked polymethyl methacrylate with a particle size of    approximately 1 to 5 μm-   Micropearl™ MHB: silky, hydrophobic powder based on crosslinked    polymethyl methacrylate;-   Simulgel™ EG: self-invertible inverse copolymer latex like those    described in international publication WO 99/36445 (INCI name:    Hydroxyethyl acrylate/Sodium acryloyldimethyl taurate copolymer and    Isohexadecane and Polysorbate 80), sold by SEPPIC;-   Simulgel™ NS: self-invertible inverse copolymer latex like those    described in international publication WO 99/36445 (INCI name:    Hydroxyethyl acrylate/Sodium acryloyldimethyl taurate copolymer and    squalane and Polysorbate 60), sold by SEPPIC;-   Sepigel™305: self-invertible inverse latex (INCI name:    Polyacrylamide/C13-14 Isoparaffin/Laureth-7)-   DC5225C™: mixture of cyclopentasiloxane and dimethicone copolyol,    sold by Dow Corning;-   DC345™: cyclomethicone sold by Dow Corning;-   Dry Flo™: starch modified with aluminium and octenyl succinate, sold    by National Starch;-   Mica 1000™: mica powder sold by Sciama;-   Aerosil™200: silica sold by Degussa;-   ZnO Neutral™: micronized zinc oxide, sold by Harmann & Reimer;-   Sepicide™ Cl: imidazolinylurea (preservative), sold by SEPPIC;-   Sepicide™ HB: mixture of phenoxyethanol, methylparaben,    ethylparaben, propylparaben and butylparaben (preservative), sold by    SEPPIC;-   Sepicide™ LD: phenoxyethanol, sold by SEPPIC;-   Sensiva™ SC50: 1-(2-ethylhexyl)glycerol, sold by Schuelke & Mayr;-   Sepicalm™ VG: composition like those described in international    publication WO 99/45899 (INCI name: sodium palmitoyl proline and    waterlily flower extract), sold by SEPPIC;-   Sepilift™ DPHP: (INCI name: Dipalmitoyl hydroxyproline), sold by    SEPPIC;-   Sepitonic™ M3: mixture of magnesium aspartate, copper gluconate and    zinc gluconate sold by SEPPIC;-   Givobio™ GCu: copper gluconate sold by SEPPIC;-   Lipacide™ UG: undecylenoylglycine sold by SEPPIC;-   Lipacide™ C8G: octanoylglycine sold by SEPPIC;-   Lanol™ 99: isononyl isononanoate sold by SEPPIC;-   Lanol™ 1688: cetearyl ethylhexanoate sold by SEPPIC;-   Pecosil™ PS100 is the dimethicone copolyol phosphate sold by    Phoenix;-   Montanov™ L: emulsifier based on C14-C22 alcohol and C12-C20 alkyl    polyglucoside, like those described in European patent application    EP 0 995 487;-   Sepicontrol™ A5: mixture of capryloylglycine, sarcosine and extract    of Cinnamonum zylanicum, sold by SEPPIC, like those described in    international publication WO 99/00109.

1. A texturizing composition that comprises: a) from about 1% to about90% of at least one self-invertible inverse latex by weight; and b) fromabout 10% to about 99% of at least one powder by weight.
 2. Thecomposition according to claim 1, wherein said composition comprises: a)from about 5% to about 80% of said self-invertible inverse latex; and b)from about 20% to about 95% of said powder.
 3. The composition accordingto claim 2, wherein said composition is essentially free of fillers. 4.The composition according to claim 1, wherein said composition is inpowder form.
 5. The composition according to claim 1, wherein saidself-invertible latex is in liquid form.
 6. The composition according toclaim 1, wherein said self-invertible latex comprises at least onecomponent selected from the group consisting of: a) an oil phase; b) anaqueous phase; c) at least one water-in-oil (W/O) phase; d) anemulsifier; and e) at least one oil-in-water (O/W) emulsifier.
 7. Thecomposition according to claim 6, wherein said oil phase is in the rangeof from about 15% to about 40% by weight of the total latex.
 8. Thecomposition according to claim 7, wherein said oil phase is in the rangeof from about 20% to about 25%.
 9. The composition according to claim 6,wherein said oil phase comprises saturated hydrocarbons.
 10. Thecomposition according to claim 6, wherein said emulsifier is in therange of from about 2.5% to about 15% by weight of the total latex. 11.The composition according to claim 10, wherein said emulsifier is in therange of from about 4% to about 9%.
 12. The composition according toclaim 6, wherein said oil-in-water (O/W) emulsifier comprises a branchedor cross-linked polyelectrolyte in the range of from about 20% to about70% by weight of the total latex.
 13. The composition according to claim12, wherein said polyelectrolyte is in the range of from about 25% toabout 50%.
 14. The composition according to claim 1, wherein saidself-invertible inverse latex comprises at least one inverse emulsionselected from the group consisting of: a) copolymer of acrylic acidpartly in sodium salt form and acrylamide, cross linked withmethylenebis (acrylamide); b) copolymer of2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly insodium salt form and acrylamide, cross-linked with methylenebis(acrylamide); c) copolymer of2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly insodium salt form and acrylic acid partly in sodium salt form,cross-linked with methylenebis (acrylamide); d) copolymer of2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly insodium salt form and 2-hydroxyethyl acrylate, cross-linked withmethylenebis (acrylamide); e) homopolymer of2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly insodium salt form, cross-linked with methylenebis (acrylamide); f)homopolymer of acrylic acid partly in ammonium salt or monoethanolaminesalt form, cross-linked with sodium diallyloxyacetate; and g)homopolymer of acrylic acid partly in ammonium or monoethanolamine saltform, cross-linked with triallylamine.
 15. The composition according toclaim 1, wherein said powder is in spherical form.
 16. The compositionaccording to claim 1, wherein said powder is homogenous.
 17. Thecomposition according to claim 1, wherein said powder comprises at leastone component selected from the group consisting of: a) syntheticmaterials; b) natural materials; c) organic materials; d) inorganicmaterials; e) hydrophilic materials; and f) hydrophobic materials. 18.The composition according to claim 1, wherein said powder contains amean diameter in the range of from about 0.01 μm to about 250 μm. 19.The composition according to claim 18, wherein said diameter is in therange of from about μum to about 50 μm.
 20. The composition according toclaim 1, wherein said powder comprises porous polylmethyl methacrylatemicrospheres.
 21. The composition according to claim 20, wherein saidporous polymethyl methacrylate microsphere has a specific surface areagreater than or equal to about 0.5 m² per gram.
 22. The compositionaccording to claim 2, wherein said powder comprises at least about 50%by weight of the total composition.
 23. A method for improving thetexture of a cosmetic or pharmaceutical formulation comprising the stepsof: i) adding an effective amount of at least one self-invertibleinverse latex to said formulation; and ii) adding an amount of at leastone powder, wherein step i) and step ii) are simultaneous so as to addabout 1% to about 90% self-invertible inverse latex and about 10% toabout 99% powder.
 24. The method according to claim 23, wherein saidmethod further comprises: iii) adding at least one excipient.
 25. Themethod according to claim 23, wherein said cosmetic or pharmaceuticalformulation is a solid formulation.
 26. The method according to claim25, wherein said formulation is selected from the group consisting of:a) foundations; b) makeup powders; c) mascaras; and d) lipsticks. 27.The method according to claim 23, wherein said formulation is selectedfrom the group consisting of: a) sprayable formulations; and b)solutions wherein said formulation is impregnated on complexioncorrector papers or fabrics, paper; or towels utilized in the cosmetic,pharmacy, or hygiene industry.
 28. The method according to claim 23,wherein said cosmetic or pharmaceutical formulation is utilized toimprove the texture of liquids.
 29. The method according to claim 28,wherein said method is utilized to improve at least one componentselected from the group consisting of: a) emulsions; b) lotions; and c)gels.